﻿#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
int main()
{
	int n;
	scanf("%d", &n);
	int sum = 0;
	while (n--) {
		int num;
		scanf("%d", &num);
		sum += num;
	}
	printf("%d", sum);
	return 0;

}